Contributed by rueda on from the forest-hugger dept.
Following a
discussion on tech@,
Job Snijders (job@
),
committed
to
ps(1)
support for displaying the parent/child hierarchy of processes
as an ASCII art tree:
CVSROOT: /cvs Module name: src Changes by: job@cvs.openbsd.org 2022/09/01 15:15:54 Modified files: bin/ps : extern.h print.c ps.1 ps.c ps.h Log message: Add forest (-f) mode In -f mode group & display parent/child process relationships using ASCII art. Borrows heavily from Brian Somers' work on FreeBSD ps(1). With input from deraadt@ and tb@ OK benno@ claudio@
The "-f
" option letter is after
GNU ps
.
The first post in the tech@ thread gives an example of the appearance:
$ ps ad -O ppid,user PID PPID USER TT STAT TIME COMMAND 18180 12529 job pb I+p 0:00.01 `-- -sh (sh) 26689 56460 job p3 Ip 0:00.01 `-- -ksh (ksh) 5153 26689 job p3 I+p 0:40.18 `-- mutt 62046 25272 job p4 Sp 0:00.25 `-- -ksh (ksh) 61156 62046 job p4 R+/0 0:00.00 `-- ps -ad -O ppid 26816 2565 job p5 Ip 0:00.01 `-- -ksh (ksh) 79431 26816 root p5 Ip 0:00.16 `-- /bin/ksh 43915 79431 _rpki-cl p5 S+pU 0:06.97 `-- rpki-client 70511 43915 _rpki-cl p5 I+pU 0:01.26 |-- rpki-client: parser (rpki-client) 96992 43915 _rpki-cl p5 I+pU 0:00.00 |-- rpki-client: rsync (rpki-client) 49160 43915 _rpki-cl p5 S+p 0:01.52 |-- rpki-client: http (rpki-client) 99329 43915 _rpki-cl p5 S+p 0:03.20 `-- rpki-client: rrdp (rpki-client)
This (great, convenience) feature was previously unavailable
in the base system, but could be found in ports such as
pstree(1)
.
(Comments are closed)
By d.c. (d.c.) on
Sounds really promising! After 'cp -a' doing 'ps axf' is my second most often mistake, when I keep digressing from OpenBSD to GNU/Linux and back many times a day...